CN203364671U - Hole-by-hole blasting network - Google Patents
Hole-by-hole blasting network Download PDFInfo
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- CN203364671U CN203364671U CN 201320440354 CN201320440354U CN203364671U CN 203364671 U CN203364671 U CN 203364671U CN 201320440354 CN201320440354 CN 201320440354 CN 201320440354 U CN201320440354 U CN 201320440354U CN 203364671 U CN203364671 U CN 203364671U
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Abstract
The utility model discloses a hole-by-hole blasting network which comprises primer detonators, inter-hole explosion propagation detonators, inter-row explosion propagation detonators, blast holes and detonating cords, wherein the blast holes are serially connected with the inter-hole explosion propagation detonators in a direction opposite to an explosion propagation direction; the blast holes and the inter-hole explosion propagation detonators are serially connected in rows through the detonating cords; the blast holes are connected in parallel to the detonating cords guided from the primer detonators; the inter-row explosion propagation detonators are arranged between the rows of blast holes in the detonating cords respectively. The blasting network is designed in a way that each row of blast holes form a group, the groups of blast holes are subjected to delayed blasting in sequence, and the holes in the groups are also subjected to delayed blasting in sequence, so that the hole-by-hole blasting effect is achieved, the vibration caused by blasting is reduced, the safety requirements of buildings near blasting regions are met, and the blasting quality is also remarkably improved.
Description
Technical field
The utility model relates to a kind of blasting circuit, is specifically related to a kind of hole-by-hole blasting circuit.
Background technology
In the heavy constructions such as engineering explosion extensive use railway, mine, reservoir, blasting technique has important function.The key factor that need to consider when shotfiring safety is explosion, the difference of explosion environment, also have very large difference to the requirement of shotfiring safety and blasting technique parameter.The short-delay blasting of many rounds generally refers to the explosion of detonating interval time with Millisecond between each row of many rounds, with the single row of holes volley that the past is generally used, compare, the short-delay blasting of many rounds is improved blasting quality, improves demolition effect, burst size is large and reduce the advantage such as earthquake sheet.
When blast area circumstance complication, particularly periphery have residential block and high-lager building, the vibration produced while adopting common short-delay blasting can have influence on the stability of fabric structure, has a strong impact on the safety of surrounding enviroment.Therefore, need to improve detonation mode and reduce vibration, meet the building safety demand.
Summary of the invention
In view of this, the utility model provides a kind of hole-by-hole blasting circuit, can reduce the vibration that explosion produces, and meets near the demand for security of building blast area.
Hole-by-hole blasting circuit of the present utility model, comprise propagation of explosion detonator, big gun hole and primacord between propagation of explosion detonator between detonating capsule, hole, row, each big gun hole all is connected in series propagation of explosion detonator between a hole along the detonation propagation rightabout, and between described big gun hole and hole, the propagation of explosion detonator is connected in a row by primacord; Each artillery salvo hole is connected in parallel on the primacord of drawing from detonating capsule, on described primacord, between each artillery salvo hole, be respectively equipped with propagation of explosion detonator between a row.
Further, between described hole, the propagation of explosion detonator is delay detonating detonator, and its extension duration is 16-18ms.
Further, between described row, the propagation of explosion detonator is delay detonating detonator, and its extension duration is 62-68ms.
Further, described blasthole diameter is 110-130mm, and the degree of depth is 3.8-4.2m, and pitch-row is 4.6-5.0m, and array pitch is 3.0-3.4m.
Further, described big gun hole dynamite quantity per hole is 3.8-4.2kg, and total dose is 22-23kg.
The beneficial effects of the utility model are: design of firing circuit of the present utility model is one group for each row big gun hole, delayed ignition successively between each group, also delayed ignition successively between each hole in group, realized hole-by-hole initiation, therefore, the utility model has reduced the vibration that explosion produces, and has met near the demand for security of building blast area, simultaneously, blasting quality has also had obvious improvement.
The accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein: Fig. 1 is structural representation of the present utility model.
The specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
Fig. 1 is structural representation of the present utility model, as shown in the figure, hole-by-hole blasting circuit of the present utility model, comprise propagation of explosion detonator 3, big gun hole 2 and primacord 5 between propagation of explosion detonator 4 between detonating capsule 1, hole, row, each big gun hole 2 all is connected in series propagation of explosion detonator 4 between a hole along the detonation propagation rightabout, and between described big gun hole 2 and hole, propagation of explosion detonator 4 by primacord 5 series connection in a row; Each artillery salvo hole 2 is connected in parallel on the primacord 5 of drawing from detonating capsule 1, on described primacord 5, between each artillery salvo hole 2, be respectively equipped with propagation of explosion detonator 3 between a row.
In the hole-by-hole blasting circuit of the present embodiment, between hole, propagation of explosion detonator 4 is delay detonating detonator, and its extension duration is 16-18ms.
In the hole-by-hole blasting circuit of the present embodiment, between row, propagation of explosion detonator 3 is delay detonating detonator, and its extension duration is 62-68ms.
In the hole-by-hole blasting circuit of the present embodiment, big gun hole 2 diameters are 110-130mm, and the degree of depth is 3.8-4.2m, and pitch-row is 4.6-5.0m, and array pitch is 3.0-3.4m.
In the hole-by-hole blasting circuit of the present embodiment, big gun hole 2 dynamite quantity per holes are 3.8-4.2kg, and total dose is 22-23kg.
When the utility model detonates, from detonating capsule 1 explosion, due to the effect of propagation of explosion detonator 3 between propagation of explosion detonator 4 between hole and row, in group, delayed ignition successively between each big gun hole and between each group, realized hole-by-hole initiation, reduced the vibration that explosion produces.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (5)
1. a hole-by-hole blasting circuit, comprise propagation of explosion detonator (3), big gun hole (2) and primacord (5) between propagation of explosion detonator (4) between detonating capsule (1), hole, row, it is characterized in that: each big gun hole (2) all is connected in series propagation of explosion detonator (4) between a hole along the detonation propagation rightabout, and between described big gun hole (2) and hole, propagation of explosion detonator (4) by primacord (5) series connection in a row; Each artillery salvo hole (2) is connected in parallel on the primacord (5) of drawing from detonating capsule (1), and described primacord (5) is upper, be respectively equipped with propagation of explosion detonator (3) between a row between each artillery salvo hole (2).
2. hole-by-hole blasting circuit according to claim 1, it is characterized in that: between described hole, propagation of explosion detonator (4) is delay detonating detonator, and its extension duration is 16-18ms.
3. hole-by-hole blasting circuit according to claim 1 and 2, it is characterized in that: between described row, propagation of explosion detonator (3) is delay detonating detonator, and its extension duration is 62-68ms.
4. hole-by-hole blasting circuit according to claim 1, it is characterized in that: described big gun hole (2) diameter is 110-130mm, and the degree of depth is 3.8-4.2m, and pitch-row is 4.6-5.0m, and array pitch is 3.0-3.4m.
5. according to the described hole-by-hole blasting circuit of claim 1 or 4, it is characterized in that: described big gun hole (2) dynamite quantity per hole is 3.8-4.2kg, and total dose is 22-23kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320440354 CN203364671U (en) | 2013-07-23 | 2013-07-23 | Hole-by-hole blasting network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320440354 CN203364671U (en) | 2013-07-23 | 2013-07-23 | Hole-by-hole blasting network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203364671U true CN203364671U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320440354 Expired - Lifetime CN203364671U (en) | 2013-07-23 | 2013-07-23 | Hole-by-hole blasting network |
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| CN (1) | CN203364671U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101269A (en) * | 2014-04-11 | 2014-10-15 | 中国水利水电第十一工程局有限公司 | Shock-conducing tube four-way connecting explosion propagation operating method |
| CN105444630A (en) * | 2015-11-10 | 2016-03-30 | 攀钢集团矿业有限公司 | Presplit hole explosion device and explosion device |
| CN107003104A (en) * | 2014-09-23 | 2017-08-01 | 刘仁武 | Delaying blasting method and explosion and delay instrument between most short row endoporus |
| CN110779404A (en) * | 2019-11-06 | 2020-02-11 | 国网辽宁省电力有限公司大连供电公司 | Blasting method for improving vibration frequency of shaft blasting |
| CN114279286A (en) * | 2022-01-07 | 2022-04-05 | 安徽马钢矿业资源集团南山矿业有限公司 | Multistage filling blasting dust-settling method for open-air iron ore |
| CN114858022B (en) * | 2022-05-26 | 2023-03-28 | 江苏长江爆破工程有限公司 | Vibration reduction detonation network and chimney directional blasting demolition method |
-
2013
- 2013-07-23 CN CN 201320440354 patent/CN203364671U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101269A (en) * | 2014-04-11 | 2014-10-15 | 中国水利水电第十一工程局有限公司 | Shock-conducing tube four-way connecting explosion propagation operating method |
| CN107003104A (en) * | 2014-09-23 | 2017-08-01 | 刘仁武 | Delaying blasting method and explosion and delay instrument between most short row endoporus |
| CN105444630A (en) * | 2015-11-10 | 2016-03-30 | 攀钢集团矿业有限公司 | Presplit hole explosion device and explosion device |
| CN105444630B (en) * | 2015-11-10 | 2017-10-24 | 攀钢集团矿业有限公司 | Pre- ceasma demolition set and demolition set |
| CN110779404A (en) * | 2019-11-06 | 2020-02-11 | 国网辽宁省电力有限公司大连供电公司 | Blasting method for improving vibration frequency of shaft blasting |
| CN114279286A (en) * | 2022-01-07 | 2022-04-05 | 安徽马钢矿业资源集团南山矿业有限公司 | Multistage filling blasting dust-settling method for open-air iron ore |
| CN114858022B (en) * | 2022-05-26 | 2023-03-28 | 江苏长江爆破工程有限公司 | Vibration reduction detonation network and chimney directional blasting demolition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |